Adds targets for simarmv6 and armv6

tools/build.py

Index: tools/build.py
diff --git a/tools/build.py b/tools/build.py
index dac178fbf2209ef3208965ea1bbc43daba2f415c..91d68640c215ecf3fa58912598fefae131c9f4f7 100755
--- a/tools/build.py
+++ b/tools/build.py
@@ -55,8 +55,8 @@ def BuildOptions():
       default=False, action="store_true")
   result.add_option("-a", "--arch",
       help='Target architectures (comma-separated).',
-      metavar='[all,ia32,x64,simarm,arm,simarmv5te,armv5te,simmips,mips'
-              ',simarm64,arm64,]',
+      metavar='[all,ia32,x64,simarm,arm,simarmv6,armv6,simarmv5te,armv5te,'
+              'simmips,mips,simarm64,arm64,]',
       default=utils.GuessArchitecture())
   result.add_option("--os",
     help='Target OSs (comma-separated).',
@@ -101,8 +101,8 @@ def ProcessOptions(options, args):
       print "Unknown mode %s" % mode
       return False
   for arch in options.arch:
-    archs = ['ia32', 'x64', 'simarm', 'arm', 'simarmv5te', 'armv5te', 'simmips',
-             'mips', 'simarm64', 'arm64',]
+    archs = ['ia32', 'x64', 'simarm', 'arm', 'simarmv6', 'armv6',
+             'simarmv5te', 'armv5te', 'simmips', 'mips', 'simarm64', 'arm64',]
     if not arch in archs:
       print "Unknown arch %s" % arch
       return False
@@ -119,7 +119,7 @@ def ProcessOptions(options, args):
         print ("Cross-compilation to %s is not supported on host os %s."
                % (os_name, HOST_OS))
         return False
-      if not arch in ['ia32', 'arm', 'armv5te', 'arm64', 'mips']:
+      if not arch in ['ia32', 'arm', 'armv6', 'armv5te', 'arm64', 'mips']:
         print ("Cross-compilation to %s is not supported for architecture %s."
                % (os_name, arch))
         return False